English

jumpmaster

From jump + master.

A compound of jump + master

Middle English jumpen ‘to walk quickly’

English jump

Proto-Indo-European *méǵh₂s ‘big’

Old Latin magester

Latin magister ‘chief’

Old English mǣster

Middle English maister ‘master’

Today it means

noun One who supervises the jumping of paratroopers or other parachutists from an aeroplane.

Language periods are conventional ranges, not dates for this word.

Etymograph / jumpmaster